CN110599913A - Flexible display panel and flexible display device - Google Patents
Flexible display panel and flexible display device Download PDFInfo
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- CN110599913A CN110599913A CN201911054131.7A CN201911054131A CN110599913A CN 110599913 A CN110599913 A CN 110599913A CN 201911054131 A CN201911054131 A CN 201911054131A CN 110599913 A CN110599913 A CN 110599913A
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- display panel
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- flexible display
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- 239000011347 resin Substances 0.000 description 4
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- 239000003292 glue Substances 0.000 description 2
- 230000005525 hole transport Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a flexible display panel and a flexible display device, wherein the flexible display panel comprises a display panel body and a flexible supporting layer, the backlight surface of a bending area is attached with the flexible supporting layer, so that the flexible supporting layer and the display panel body form an integral part, and when the flexible display panel is bent, the hardness of the flexible supporting layer is soft, and the bending of the display panel body is not influenced. When flexible display panel expandes, the hardness of flexible supporting layer this moment is greater than the hardness of flexible supporting layer when the display panel body is in the state of buckling, utilize the flexible supporting layer to provide holding power for buckling the region this moment, make the display panel body can open up the paper-back edition, simultaneously because flexible supporting layer and display panel body laminating set up, buckling and expanding under the process, both can not take place relative slip, make the surface of flexible display panel be in the horizontality always, avoid flexible display panel to take place the fold, and then improve flexible display panel's display effect.
Description
Technical Field
The invention relates to the technical field of display, in particular to a flexible display panel and a flexible display device.
Background
The flexible display panel has the advantages of low energy consumption, wide viewing angle, fast response speed, flexible display and the like, and is widely applied to various electronic devices, such as mobile phones and tablet computers.
The flexible display panel generally includes a bending region and two non-bending regions located at two sides of the bending region, and the two non-bending regions can be flipped with respect to the bending region to enable the flexible display panel to perform an unfolding or bending function.
When the flexible display panel is applied to a flexible display device, two supporting plates for supporting two non-bending regions are generally required to be disposed on the back of the non-bending region, and a mechanical connection portion is disposed on the surface of the bending region, wherein the mechanical connection portion is respectively connected to the two supporting plates, and a certain gap is formed between the mechanical connection portion and the bending region. In the bending process of the flexible display device, the mechanical connecting part is used as a rotating shaft; in the unfolding process of the flexible display device, the mechanical connecting part is used as a supporting part to support the flexible display panel, so that the flexible display device is unfolded.
However, in the process of bending and unfolding, the mechanical connection part and the flexible display panel may form a relative slip, which may cause the flexible display panel to wrinkle, thereby reducing the display effect of the flexible display panel.
Disclosure of Invention
The embodiment of the invention provides a flexible display panel and a flexible display device, and aims to solve the technical problem that in the prior art, the display effect of the flexible display panel is reduced due to the fact that folds are generated in the process of bending and unfolding the flexible display panel.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in one aspect, the embodiment of the invention provides a flexible display panel, which comprises a display panel body and a flexible supporting layer, wherein the display panel body comprises a bending area and a non-bending area connected with the bending area; the flexible supporting layer is attached to a backlight surface of the bending area and comprises a flexible substrate and a heating layer, a plurality of accommodating grooves are formed in the flexible substrate, and a magnetic ball is arranged in each accommodating groove; the heating layer is arranged on the flexible base body and used for heating the magnetic balls when the display panel body is in an unfolded state, and the magnetic balls are heated and expanded, so that the hardness of the flexible supporting layer is larger than that of the flexible supporting layer when the display panel body is in a bent state.
The flexible display panel as described above, wherein the magnetic balls include elastic balls and magnetic powder uniformly distributed in the elastic balls.
The flexible display panel as described above, wherein the elastic sphere is a hollow sphere, and the magnetic powder is located between an inner surface and an outer surface of the hollow sphere.
The flexible display panel as described above, wherein the plurality of receiving grooves are arranged in the flexible substrate in a honeycomb manner.
The flexible display panel as described above, wherein the flexible substrate is a foam layer or a rubber layer.
The flexible display panel comprises a plurality of layers of foam layers, wherein the foam layers are stacked in sequence, and a plurality of accommodating grooves are formed in each layer of foam layer.
The flexible display panel as described above, wherein the heating layer includes a heating wire, the heating wire is adhered to the flexible substrate, and an insulating layer is disposed outside the heating wire.
The flexible display panel as described above, wherein the number of the non-bending regions is two, and the non-bending regions are symmetrically distributed on two sides of the bending region.
The flexible display panel as described above, wherein at least one end of the flexible supporting layer has an extending portion, and the extending portion is attached to the non-bending region.
In another aspect, an embodiment of the present invention provides a flexible display device, including the flexible display panel as described above, and a first housing and a second housing disposed on a backlight surface of the flexible display panel; the first shell and the second shell are provided with a gap therebetween, and the gap is used for accommodating the flexible supporting layer.
In the flexible display panel provided by the embodiment of the invention, the flexible supporting layer is attached to the backlight surface of the bending area, so that the flexible supporting layer and the display panel body form an integral component, the distance between adjacent magnetic balls is large at normal temperature, and the hardness of the flexible supporting layer is soft, so that the bending of the display panel body is not influenced. When flexible display panel expandes, the zone of heating is to the heating of magnetic ball, each magnetic ball is heated the inflation, make the hardness of flexible supporting layer this moment be greater than the hardness of flexible supporting layer when the display panel body is in the state of buckling, utilize the flexible supporting layer to provide holding power for buckling the region, make the display panel body can open the flat exhibition, simultaneously because flexible supporting layer and display panel body laminating set up, buckling and expansion under the process, relative slip can not take place for both, make the surface of flexible display panel be in the leveling condition always, avoid flexible display panel to take place the fold, and then improve flexible display panel's display effect.
In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems that can be solved by the flexible display panel and the flexible display device provided by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a bending process of a display device according to an embodiment of the invention;
fig. 3 is a schematic diagram of a display device according to an embodiment of the invention after bending;
FIG. 4 is an enlarged schematic view of area A of FIG. 1;
FIG. 5 is a schematic structural view of a magnetic ball at room temperature;
FIG. 6 is a schematic view of the structure of the magnetic ball in a heated state;
fig. 7 is a state diagram of the plurality of magnetic balls in a heated state.
Description of reference numerals:
10: a display panel body;
101: a bending region;
102: a non-bent region;
20: a flexible support layer;
201: a magnetic ball;
2011: an inner surface;
2012: an outer surface;
2013: magnetic powder;
202: a heating layer;
30: a containing groove;
40: a first housing;
50: a second housing;
60: and a power supply module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
The flexible display panel generally includes a bending region and a non-bending region connected to the bending region, and the non-bending region may be turned with respect to the bending region to unfold or bend the flexible display panel. At least one bending region and at least one non-bending region may be included in the same flexible display panel, for example, the flexible display panel includes one bending region and two non-bending regions.
Since the flexible display panel is relatively flexible, it is usually necessary to provide a support member on the backlight surface of the flexible display panel, for example, a first housing is provided in one of the non-bending regions, a second housing is provided in the other non-bending region, and the first housing and the second housing are connected by a mechanical connection portion, where the mechanical connection portion is located on the backlight surface of the bending region. In the process of bending the flexible display panel, the mechanical connecting part is used as a rotating shaft; in the unfolding process of the flexible display panel, the mechanical connecting part serves as a supporting part to support the flexible display panel, so that the flexible display panel is flattened.
However, a certain gap is formed between the mechanical connecting part and the bending area, and in the process of bending and unfolding the flexible display panel, relative sliding occurs between the mechanical connecting part and the flexible display panel, so that the mechanical connecting part touches the flexible display panel, the flexible display panel is wrinkled, and the display effect of the flexible display panel is reduced.
In view of the above problems, embodiments of the present invention provide a flexible display panel, in which a flexible supporting layer is disposed on a backlight surface of a bending region, and the flexible supporting layer has functions of a rotating shaft and a supporting function at the same time, and does not need to additionally dispose a mechanical connection portion, and meanwhile, the flexible display panel is prevented from being wrinkled, and the display effect of the flexible display panel is improved.
The following describes the flexible display panel and the flexible display device provided in this embodiment in detail with reference to the accompanying drawings.
Referring to fig. 1 to 7, an embodiment of the invention provides a flexible display panel, which includes a display panel body 10 and a flexible supporting layer 20. The display panel body 10 may include a bending region 101 and a non-bending region 102 connected to the bending region, and the flexible supporting layer 20 is attached to a backlight surface of the bending region 101; the flexible support layer 20 includes a flexible substrate having a plurality of receiving grooves 30 disposed therein, and a heating layer 202 having one magnetic ball 201 disposed in each receiving groove 30. The heating layer 202 is disposed on the flexible substrate, when the display panel body is in the unfolded state, the heating layer 202 is used to heat each magnetic ball 201, and each magnetic ball 201 is heated to expand, so that when the display panel body 10 is in the unfolded state, the hardness of the flexible support layer 20 is greater than that of the flexible support layer 20 when the display panel body 10 is in the bent state.
During the use process, the non-bending region 102 may rotate relative to the bending region 101 to bend or unfold the flexible display panel, and as for the size ratio of the bending region 101 to the non-bending region 102, the size ratio may be designed according to the size of the product, and the embodiment is not limited in detail herein.
The display panel body 10 may include a substrate, an anode layer, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, and a cathode layer, which are sequentially stacked, wherein the substrate serves as a carrier of the flexible display panel and is used for supporting devices disposed thereon, and the substrate may be a flexible substrate, such as a polyimide substrate. In addition, the cathode layer is used for generating electrons, the electrons enter the light-emitting layer through the electron injection layer and the electron transport layer, the anode layer is used for generating holes, the holes enter the light-emitting layer through the hole transport layer and the hole injection layer, and the electrons and the holes are combined in the light-emitting layer to emit light.
In the present embodiment, the backlight side refers to a side of the substrate facing away from the light emitting layer, i.e., a bottom surface of the substrate.
The flexible support layer 20 is arranged on the backlight surface of the bending area 101, the flexible support layer 20 has the functions of rotation and support, and the flexible support layer 20 can be adhered to the backlight surface of the bending area 101 through adhesive glue, so that the upper surface of the flexible support layer 20 is attached to the lower surface of the bending area 101. The flexible support layer 20 is the same size or substantially the same size as the bending region 101 for supporting the bending region 101.
When the flexible display panel is in a bent state, the hardness of the flexible support layer 20 is smaller, or the hardness of the flexible support layer 20 is smaller than the hardness of the display panel body 10, and the flexible support layer 20 is equivalent to a rotating component, at this time, the non-bent region 102 may be turned over relative to the bent region 101; when the flexible display panel is in the unfolded state, at this time, the hardness of the flexible support layer 20 is increased, so that the hardness of the flexible support layer 20 is greater than that of the flexible support layer 20 when the display panel body 10 is in the bent state, and the flexible support layer 20 provides a supporting force for the bending region 101, so that when a user touches the display panel body 10, the display panel body 10 cannot be sunken, and the display effect of the flexible display panel is improved.
It will be appreciated that the flexible support layer 20 has two states, one being: during the bending process of the flexible display panel, the flexible support layer 20 may become soft and bend along with the bending region 101 of the flexible display panel, as shown in fig. 2 and 3; the other is as follows: during the unfolding process of the flexible display panel, the flexible support layer 20 may be hardened to provide a supporting force for the bending region 101, and the two states may be optionally switched.
As a possible specific embodiment of the flexible support layer 20, the flexible support layer 20 includes a flexible base body and a heating layer 202, the flexible base body is provided with a plurality of accommodating grooves 30, and each accommodating groove 30 is provided with one magnetic ball 201. The heating layer 202 is disposed on the flexible substrate, and when the display panel body is in an unfolded state, the heating layer 202 is used for heating each magnetic ball 201, and each magnetic ball 201 is heated and expanded to reduce the distance between adjacent magnetic balls, thereby increasing the strength of the display panel body.
The flexible substrate serves as a support member of the flexible support layer 20, and has certain flexibility and hardness, and the flexible substrate can be bent along with the flexible display panel and can also support the flexible display panel.
A plurality of accommodating grooves for accommodating magnetic balls are formed in the flexible substrate, as shown in fig. 4, 5, and 6, a plurality of accommodating grooves 30 are respectively provided with a magnetic ball 201, wherein the volume of the magnetic ball 201 is smaller than that of the accommodating groove 30, when the flexible display panel is in a bending state, the magnetic ball 201 is usually located at a central position close to the accommodating groove 30, on one hand, adjacent magnetic balls 201 can be isolated through the accommodating groove 30, and the magnetic balls 201 are prevented from gathering together, so that the hardness of the flexible supporting layer 20 at a normal temperature state is higher than that of the display panel body 10, which is not beneficial to bending the flexible display panel. On the other hand, the magnetic balls 201 have a movable space in the accommodating groove 30, when the flexible display panel is in an unfolded state, the heating layer 202 heats the magnetic balls 201, the magnetic balls 201 are heated and expanded, the volume of the magnetic balls is increased, the distance between the adjacent magnetic balls 201 is shortened, and the attraction force between the adjacent magnetic balls 201 is increased, and the adjacent magnetic balls 201 can rotate around the axis of the adjacent magnetic balls in the expansion process, so that the magnetic balls in different directions have opposite polarities, and the magnetic balls in different directions attract each other by using the principle of opposite attraction, so that the hardness of the flexible supporting layer 20 is enhanced. The shape of the receiving groove 30 may be selected from various shapes, such as a circle, an ellipse, or a polygon. In addition, the distribution of the receiving grooves 30 may be selected in many ways, for example, the receiving grooves 30 may be randomly arranged on the flexible supporting layer 20; for another example, the receiving grooves 30 are arranged on the flexible supporting layer 20 in a honeycomb shape.
However, the structure of the flexible supporting layer is not limited to the above structural form, in order to realize the function that the hardness of the flexible supporting layer is greater than the hardness of the flexible supporting layer in the bent state when the flexible supporting layer is in the unfolded state, a resin adhesive with certain fluidity may be provided in the flexible supporting layer 20, wherein an active agent is added to the resin adhesive, the resin adhesive is in a liquid state at normal temperature, the flexible supporting layer 20 has flexibility, and the activity of the active agent is excited when the flexible supporting layer is in the heated state, so that the molecules in the resin adhesive are bonded into a whole, thereby improving the hardness of the flexible supporting layer 20.
According to the flexible display panel provided by the embodiment of the invention, the flexible supporting layer 20 is attached to the backlight surface of the bending area 101, so that the flexible supporting layer 20 and the display panel body 10 form an integral part, when the flexible display panel is bent at normal temperature, the distance between adjacent magnetic balls is large, the magnetic force is small, and at the moment, the hardness of the flexible supporting layer is soft, so that the bending of the display panel body 10 is not influenced. When flexible display panel expandes, zone of heating 202 heats magnetic ball 201, each magnetic ball 201 is heated the inflation, the hardness of flexible supporting layer 20 is greater than the hardness of flexible supporting layer 20 when display panel body 10 is in the state of buckling this moment, utilize flexible supporting layer to provide the holding power for buckling the region, make display panel body 10 can open the flat, simultaneously because flexible supporting layer 20 and display panel body 10 laminating set up, buckling and expansion under the process, both can not take place relative slip, make flexible display panel's surface be in the leveling state always, avoid flexible display panel to take place the fold, and then improve flexible display panel's display effect. In addition, the bending region 101 is attached to the flexible support layer 20, so that dust can be prevented from entering between the bending region 101 and the flexible support layer 20 to affect the light emitting performance of the flexible display panel.
In one possible embodiment, the magnetic ball includes an elastomeric sphere and magnetic powder 2013 uniformly distributed within the elastomeric sphere. Wherein, elastic ball can be the silica gel ball, perhaps, the surface carries out the sponge ball of airtight processing, and elastic ball has expend with heat and contract with cold's performance, and when zone of heating 202 heated flexible base member, elastic ball can be the thermal expansion, shortens distance between the adjacent elastic ball, utilizes the appeal between the magnetic, increases flexible base member's hardness.
In one possible embodiment, the elastomeric sphere is a hollow sphere and the magnetic powder 2013 is located between the inner and outer surfaces of the hollow sphere.
The hollow ball has internal surface 2011 and surface 2012 that the interval set up, and internal surface 2011 constitutes the hollow region of hollow ball, is equipped with magnetic powder 2013 in the region of enclosing between internal surface 2011 and the surface 2012. In the process of preparing the hollow sphere, the hollow sphere can be prepared by mixing the rubber material and the magnetic powder and then by an injection molding mode.
The hollow space territory intussuseption of clean shot is filled with the air, this is because, the ability of air expend with heat and contract with cold is better than the expend with heat and contract with cold ability of silica gel, when the clean shot is heated, the air can be heated the inflation fast, internal surface 2011 to the clean shot has certain driving force, make the volume of elasticity clean shot increase fast, be full of storage tank 30, and then, make the distance between the adjacent clean shot diminish, the magnetic inter attraction is in order to be in the same place adjacent clean shot absorption, the bulk strength of flexible supporting layer 20 has been increased, thereby, provide the holding power for bending region 101.
The structure of clean shot is also not limited to foretell mode only, and the clean shot still includes interior casing and the shell body of establishing on interior casing, encloses synthetic accommodation space between shell body and the interior casing, and accommodation space intussuseption is filled with magnetic structure, and magnetic structure can be for the magnet piece of major diameter, can increase the appeal between the adjacent clean shot, even under lower heating temperature like this, flexible supporting layer 20 also can the rapid hardening, shortens the hardening time of flexible supporting layer 20, provides the holding power for regional 101 of buckling.
As a preferred implementation manner of the arrangement manner of the accommodating grooves, the accommodating grooves 30 are arranged on the flexible supporting layer 20 in a honeycomb shape, so that the situation that the hardness of the flexible supporting layer 20 is too low to achieve a supporting function can be avoided, and when the flexible display panel is unfolded and is in touch operation, the flexible display panel is stressed to be concave downwards and deformed, so that the touch function cannot be achieved; the too big hardness of flexible supporting layer 20 also can be avoided, and during buckling, flexible supporting layer 20 can stretch the extrusion region 101 of buckling, causes flexible display panel to buckle, can't realize flexible display panel's bendability.
In a feasible embodiment, flexible base member can be for steeping cotton layer or rubber layer, preferably, flexible base member is for steeping cotton layer, steep cotton layer self has certain hole, can directly set up magnetic ball 201 in the hole, the processing preparation of the flexible base member of being convenient for, in addition, the hole on bubble cotton layer possesses the function of compression and tensile simultaneously, under the microscopical state, when flexible display panel buckles, the hole on bubble cotton layer can be followed the outside little protruding of the direction that deviates from bending region 101, can provide little space for bending region 101's the buckling, be convenient for buckle regional 101's the buckling, guarantee that flexible supporting layer 20 can not extrude bending region 101, damage flexible display panel.
In addition, the foam layer may have multiple layers, the multiple layers of foam layers may be sequentially stacked to form a flexible substrate, each layer of foam layer may be provided with the receiving groove 30, and the receiving groove 30 may also be provided in a certain layer of foam layer or two layers of foam layers, so that the receiving groove 30 may be designed according to the hardness required by the flexible supporting layer 20, and this embodiment is not specifically limited herein.
When each layer of foam layer is provided with the containing groove 30, the arrangement mode of the containing groove 30 on each layer of foam layer can be the same or different. The adjacent foam layers can be connected through adhesive glue, so that the strength of the flexible supporting layer 20 can be ensured, and the processing and the manufacturing are convenient.
As a preferred embodiment of heating layer 202, heating layer 202 comprises heating wires that are bonded to a flexible substrate, with an insulating layer disposed outside the heating wires. The heating wire is electrified to generate heat, so that the temperature of the magnetic balls 201 is increased, the magnetic balls 201 are heated to expand, and the distance between the adjacent magnetic balls 201 is shortened. Wherein, the heating wire is externally provided with an insulating layer for covering the heating wire, thereby avoiding the heating wire from being exposed in the air and reducing the safety performance. In addition, the heating wire may be powered by an external power supply device, for example, the power supply device may be a power supply module 60 in a mobile phone or a computer.
In a possible embodiment, the number of the non-bending regions 102 is two, and the two non-bending regions are symmetrically distributed on two sides of the bending region to increase the display area of the flexible display panel, but other structural forms are not excluded, for example, the number of the non-bending regions may also be three, and the flexible display panel may sequentially include the non-bending region, the bending region, and the non-bending region from left to right.
In one possible embodiment, at least one end of the flexible support layer 20 has an extension portion that is attached to the non-bending region 102. In order to increase the supporting force of the flexible supporting layer 20, the area of the flexible supporting layer 20 may be larger than the area of the bending region 101, and the arrangement manner of the extending portion may be various options, for example, one end of the flexible supporting layer 20 may have an extending portion, and the extending portion may be attached to a partial region of one of the non-bending regions 102, or attached to the entire region of one of the non-bending regions 102; for another example, the left and right ends of the flexible supporting layer 20 may have extending portions, so that the extending portions may be attached to the two non-bending regions 102, thereby increasing the supporting force for the flexible display panel. Wherein the extension portion may extend along the length direction of the display panel body 10, and the width of the flexible support layer 20 may be equal to the width of the flexible display panel. In addition, the structure and function of the extending portion may be the same as or different from those of the flexible support 20, and the present embodiment is not limited specifically herein.
The embodiment of the invention also provides a flexible display device, which comprises the flexible display panel, and a first shell 40 and a second shell 50 which are arranged on the backlight surface of the flexible display panel; the first housing 40 and the second housing 50 have a gap therebetween for accommodating a flexible support layer. The first casing 40 and the second casing 50 may provide a bearing component for the flexible display panel, and may also provide an installation space for other components of the flexible display device, wherein the power supply module 60 of the flexible display device is disposed in the first casing 40 or the second casing 50, and the power supply module 60 is electrically connected to the heating wire to provide power for the heating wire so that the heating wire generates heat.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The flexible display panel is characterized by comprising a display panel body and a flexible supporting layer, wherein the display panel body comprises a bending area and a non-bending area connected with the bending area;
the flexible supporting layer is attached to a backlight surface of the bending area and comprises a flexible substrate and a heating layer, a plurality of accommodating grooves are formed in the flexible substrate, and a magnetic ball is arranged in each accommodating groove;
the heating layer is arranged on the flexible base body and used for heating the magnetic balls when the display panel body is in an unfolded state, and the magnetic balls are heated and expanded, so that the hardness of the flexible supporting layer is larger than that of the flexible supporting layer when the display panel body is in a bent state.
2. The flexible display panel of claim 1, wherein the magnetic spheres comprise elastomeric spheres and magnetic powder uniformly distributed within the elastomeric spheres.
3. The flexible display panel of claim 2, wherein the elastic spheres are hollow spheres and the magnetic powder is located between an inner surface and an outer surface of the hollow spheres.
4. The flexible display panel of any of claims 1-3, wherein the plurality of receiving channels are arranged in a honeycomb pattern in the flexible substrate.
5. The flexible display panel of any of claims 1-3, wherein the flexible substrate is a foam layer or a rubber layer.
6. The flexible display panel according to claim 5, wherein the foam layer is a plurality of layers, the plurality of foam layers are sequentially stacked, and each foam layer is provided with a plurality of receiving grooves therein.
7. The flexible display panel of any of claims 1-3, wherein the heating layer comprises a heating wire, the heating wire being bonded to the flexible substrate, the heating wire being provided with an insulating layer outside.
8. The flexible display panel according to claim 1, wherein the number of the non-bending regions is two, and the non-bending regions are symmetrically distributed on two sides of the bending region.
9. The flexible display panel of claim 1, wherein at least one end of the flexible support layer has an extension that conforms to the non-bending region.
10. A flexible display device comprising the flexible display panel according to any one of claims 1 to 9, and a first housing and a second housing provided on a backlight surface of the flexible display panel;
the first shell and the second shell are provided with a gap therebetween, and the gap is used for accommodating the flexible supporting layer.
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| PCT/CN2020/096894 WO2021082470A1 (en) | 2019-10-31 | 2020-06-18 | Flexible display panel and flexible display device |
| US17/520,026 US11880241B2 (en) | 2019-10-31 | 2021-11-05 | Flexible display panel and flexible display apparatus |
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| CN110599913B CN110599913B (en) | 2022-02-15 |
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| US (1) | US11880241B2 (en) |
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| WO (1) | WO2021082470A1 (en) |
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| CN112419900B (en) * | 2020-11-27 | 2022-04-19 | 湖北长江新型显示产业创新中心有限公司 | Display module and display device |
| CN112489559B (en) * | 2020-11-27 | 2022-06-07 | 合肥维信诺科技有限公司 | Supporting structure and display device |
| CN114787898A (en) * | 2020-12-28 | 2022-07-22 | 昆山国显光电有限公司 | Flexible display panel and display device |
| CN114787898B (en) * | 2020-12-28 | 2023-12-29 | 昆山国显光电有限公司 | Flexible display panel and display device |
| CN114688149B (en) * | 2020-12-30 | 2023-08-11 | 深圳市杰美特科技股份有限公司 | Switching structure and foldable support |
| CN114688149A (en) * | 2020-12-30 | 2022-07-01 | 深圳市杰美特科技股份有限公司 | Switching structure and foldable support |
| CN112863336A (en) * | 2021-01-11 | 2021-05-28 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
| CN112863336B (en) * | 2021-01-11 | 2022-07-12 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
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| CN112908175A (en) * | 2021-02-03 | 2021-06-04 | 武汉华星光电半导体显示技术有限公司 | Flexible display device can curl |
| CN114283683B (en) * | 2021-12-21 | 2023-10-24 | 合肥维信诺科技有限公司 | Cover plate assembly, cover plate assembly preparation method and display device |
| CN114283683A (en) * | 2021-12-21 | 2022-04-05 | 合肥维信诺科技有限公司 | Cover plate assembly, cover plate assembly preparation method and display device |
| CN114484169A (en) * | 2022-01-20 | 2022-05-13 | 合肥维信诺科技有限公司 | Supporting structure and display device |
| CN114446176A (en) * | 2022-02-09 | 2022-05-06 | 武汉华星光电半导体显示技术有限公司 | Foldable display device |
| CN115547184B (en) * | 2022-04-21 | 2023-06-13 | 荣耀终端有限公司 | Flexible supporting layer, flexible display module and flexible display device |
| CN115547184A (en) * | 2022-04-21 | 2022-12-30 | 荣耀终端有限公司 | Flexible supporting layer, flexible display module and flexible display device |
| WO2023216136A1 (en) * | 2022-05-11 | 2023-11-16 | 京东方科技集团股份有限公司 | Flexible display module and display device |
| CN115171527A (en) * | 2022-06-20 | 2022-10-11 | 昆山国显光电有限公司 | Display panel manufacturing method and display panel |
| CN115171527B (en) * | 2022-06-20 | 2023-10-27 | 昆山国显光电有限公司 | Display panel manufacturing method and display panel |
| CN115148101A (en) * | 2022-06-23 | 2022-10-04 | 昆山国显光电有限公司 | Screen support piece and flexible display panel |
| CN115394187A (en) * | 2022-07-14 | 2022-11-25 | 合肥维信诺科技有限公司 | Supporting film group, display panel and preparation method of display panel |
| CN115394187B (en) * | 2022-07-14 | 2024-02-02 | 合肥维信诺科技有限公司 | Support film group, display panel and preparation method of display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| US11880241B2 (en) | 2024-01-23 |
| CN110599913B (en) | 2022-02-15 |
| US20220058993A1 (en) | 2022-02-24 |
| WO2021082470A1 (en) | 2021-05-06 |
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Denomination of invention: Flexible display panel and flexible display device Effective date of registration: 20230616 Granted publication date: 20220215 Pledgee: China Construction Bank Co.,Ltd. Gu'an Sub branch Pledgor: YUNGU (GU'AN) TECHNOLOGY Co.,Ltd. Registration number: Y2023980044410 |
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